<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title>WebSocket 客户端</title>
        <script type="text/javascript">
            var socket;
            if (!window.WebSocket) {
                window.WebSocket = window.MozWebSocket;
            }
            if (window.WebSocket) {
                socket = new WebSocket('ws://localhost:8888/webSocket');
                socket.onmessage = function (event) {
                    var ta = document.getElementById('responseContent');
                    ta.value += event.data + '\r\n';
                }
                socket.onopen = function (event) {
                    var ta = document.getElementById('responseContent');
                    ta.value = "您的浏览器支持 WebSocket,请进行后续操作\r\n";
                }

                socket.onclose = function (event) {
                    var ta = document.getElementById('responseContent');
                    ta.value = "";
                    ta.value = "WebSocket连接已经关闭\r\n";
                }
            } else {
                alert('您的浏览器不支持 WebSocket');
            }

            function send (message) {
                if (!window.WebSocket) {
                    renturn;
                } 
                if (socket.readyState == WebSocket.OPEN) {
                    socket.send(message);
                } else {
                    alert("webSocket 连接没有建立成功!");
                }
            }
        </script>
    </head>
    <body>
        <form onSubmit="return false;">
            <input type="text" name="message" value=""/>
            <br/><br/>
            <input type="button" value="发送 webSocket 消息" onclick="send(this.form.message.value)"/>
            <hr color="red" />
            <h2>客户端接收到服务端返回的应答消息</h2>
            <textarea id="responseContent" style="width:1024px;height:300px"></textarea>
        </form>
    </body>
</html>